Very beautiful intro. Lovin' the pads, and the ascending piano accompaniment. Sounds very good so far (up to 1:20). 
I was expecting something big to happen 1:30, but it didn't.  I'm fine with where it goes, but I feel like it could have been more interesting arrangement-wise from that point 'til 3:07.  Might want to add some variance in the ethereal-sounding piano in the background. 
This is a nice arrangement, but on a second listen I don't think this is a song I could keep coming back to, which isn't necessarily a bad thing.  I think it's because it doesn't really have a killer-awesome section, it's just good and enjoyable all around.  It definitely has a mysterious sound, especially in the last minute, so kudos to that. I like this.  I think this is a solid arrangement, with nice accompaniment to a timeless tune.